Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 25, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at May 23, 2021, 6:57 PM MDT for Chase County, Keith County, Perkins County, Nebraska. It was in force for 63 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- May 23, 2021, 6:57 PM MDT (00:57 UTC)
- Expired
- May 23, 2021, 8:00 PM MDT
- In force
- 63 min
- Issued by
- NWS North Platte, NE
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Chase County, NE, Keith County, NE, Perkins County, NE
The radar
The North Platte radar (KLNX), 160 km from the middle of the area, began a volume at 00:59 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 23, 7:25 PM MDT | HAIL 1 | 4 Ene Venango, NE | ALSO HIGH WINDS |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 23, 12:06 PM MDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 1.0 hours before the alert went out and 106 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 930 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 1216 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 161 m²/s²
- 0-3 km storm-relative helicity
- 229 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 7.0
The text
As transmitted.
802
WUUS53 KLBF 240057
SVRLBF
NEC029-101-135-240200-
/O.NEW.KLBF.SV.W.0025.210524T0057Z-210524T0200Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service North Platte NE
657 PM MDT Sun May 23 2021
The National Weather Service in North Platte has issued a
* Severe Thunderstorm Warning for...
Central Perkins County in southwestern Nebraska...
Central Keith County in southwestern Nebraska...
Northwestern Chase County in southwestern Nebraska...
* Until 800 PM MDT.
* At 656 PM MDT, severe thunderstorms were located along a line
extending from 8 miles northeast of Lemoyne to near Lamar, moving
northeast at 45 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Ogallala, Grant, Madrid, Lamar, Keystone, Roscoe, Kingsley Dam,
Chase, Brandon, Nevens, Broganville, Big Bald Hill and Wild Horse
Spring.
This includes the following highways...
Highway 61 between mile markers 51 and 109.
Highway 92 between mile markers 134 and 138.
Interstate 80 in Nebraska between mile markers 119 and 142.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
A Tornado Watch remains in effect until 800 PM MDT for southwestern
Nebraska.
LAT...LON 4065 10205 4139 10174 4139 10128 4058 10166
4043 10205
TIME...MOT...LOC 0056Z 214DEG 61KT 4135 10165 4055 10205
HAIL...1.00IN
WIND...60MPH
$$
CDC2 follow-up statements
886
WWUS53 KLBF 240131
SVSLBF
Severe Weather Statement
National Weather Service North Platte NE
731 PM MDT Sun May 23 2021
NEC029-101-135-240200-
/O.CON.KLBF.SV.W.0025.000000T0000Z-210524T0200Z/
Perkins NE-Keith NE-Chase NE-
731 PM MDT Sun May 23 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM MDT
FOR CENTRAL PERKINS...CENTRAL KEITH AND NORTHWESTERN CHASE
COUNTIES...
At 731 PM MDT, severe thunderstorms were located along a line
extending from 8 miles east of Keystone to near Lamar, moving
northeast at 45 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Ogallala, Grant, Madrid, Lamar, Keystone, Roscoe, Kingsley Dam,
Chase, Brandon, Nevens, Broganville, Big Bald Hill and Wild Horse
Spring.
This includes the following highways...
Highway 61 between mile markers 51 and 99.
Interstate 80 in Nebraska between mile markers 123 and 142.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4065 10205 4139 10162 4139 10128 4058 10166
4043 10205
TIME...MOT...LOC 0131Z 217DEG 54KT 4125 10143 4061 10194
HAIL...1.00IN
WIND...60MPH
$$
CDC502
WWUS53 KLBF 240159
SVSLBF
Severe Weather Statement
National Weather Service North Platte NE
759 PM MDT Sun May 23 2021
NEC029-101-135-240209-
/O.EXP.KLBF.SV.W.0025.000000T0000Z-210524T0200Z/
Perkins NE-Keith NE-Chase NE-
759 PM MDT Sun May 23 2021
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL PERKINS...CENTRAL
KEITH AND NORTHWESTERN CHASE COUNTIES WILL EXPIRE AT 800 PM MDT...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However small
hail, gusty winds and heavy rain are still possible with these
thunderstorms.
A Tornado Watch remains in effect until 800 PM MDT for southwestern
Nebraska.
A Severe Thunderstorm Watch remains in effect until midnight MDT for
southwestern Nebraska.
LAT...LON 4065 10205 4139 10162 4139 10128 4058 10166
4043 10205
TIME...MOT...LOC 0159Z 214DEG 61KT 4163 10108 4099 10160
$$
CDCThe office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 23, 6:00 PM MDT | Severe Thunderstorm Warning | LBF | Arthur, Garden, Grant, Keith | 45 min |
| May 23, 6:04 PM MDT | Special Weather Statement | LBF | Sheridan | 41 min |
| May 23, 6:18 PM MDT | Severe Thunderstorm Warning | LBF | Deuel, Keith, Perkins | 42 min |
| May 23, 6:26 PM MDT | Severe Thunderstorm Warning | LBF | Cherry, Grant, Sheridan | 49 min |
| May 23, 6:39 PM MDT | Severe Thunderstorm Warning | LBF | Arthur, Cherry, Grant, Hooker, McPherson | 51 min |
| May 23, 6:59 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 46 min |
| May 23, 7:24 PM MDT | Special Weather Statement | LBF | Hooker | 51 min |
| May 23, 7:28 PM MDT | Areal Flood Warning | LBF | Keith, Perkins | 3 hr |
| May 23, 7:30 PM MDT | Special Weather Statement | LBF | McPherson | 45 min |
| May 23, 7:47 PM MDT | Special Weather Statement | LBF | Cherry | 43 min |
| May 23, 7:54 PM MDT | Special Weather Statement | LBF | Thomas | 51 min |
| May 23, 7:59 PM MDT | Special Weather Statement | LBF | Perkins | 46 min |
| May 23, 8:11 PM MDT | Severe Thunderstorm Warning | LBF | Brown, Cherry, Keya Paha | 49 min |
| May 23, 8:14 PM MDT | Special Weather Statement | LBF | Logan | 46 min |
| May 23, 8:17 PM MDT | Severe Thunderstorm Warning | LBF | Chase, Hayes, Perkins | 43 min |
| May 23, 8:29 PM MDT | Special Weather Statement | LBF | Blaine, Logan | 46 min |
| May 23, 8:36 PM MDT | Flash Flood Warning | LBF | Keith, Perkins | 3 hr |
| May 23, 8:39 PM MDT | Special Weather Statement | LBF | Lincoln | 51 min |
| May 23, 8:56 PM MDT | Special Weather Statement | LBF | Hayes | 34 min |
| May 23, 9:02 PM MDT | Special Weather Statement | LBF | Brown, Keya Paha, Rock | 43 min |
| May 23, 9:14 PM MDT | Special Weather Statement | LBF | Blaine, Logan, Loup | 46 min |
| May 23, 9:19 PM MDT | Special Weather Statement | LBF | Frontier | 41 min |
| May 23, 9:30 PM MDT | Severe Thunderstorm Warning | LBF | Frontier, Lincoln | 45 min |
| May 23, 9:33 PM MDT | Special Weather Statement | LBF | Lincoln | 42 min |
| May 23, 9:43 PM MDT | Special Weather Statement | LBF | Brown, Keya Paha, Rock | 47 min |
| May 23, 9:50 PM MDT | Special Weather Statement | LBF | Blaine, Loup | 40 min |
| May 23, 10:14 PM MDT | Special Weather Statement | LBF | Custer, Frontier | 46 min |
| May 23, 10:36 PM MDT | Special Weather Statement | LBF | Garfield, Loup | 39 min |
| May 23, 10:59 PM MDT | Special Weather Statement | LBF | Dawson | 31 min |
| May 23, 11:13 PM MDT | Special Weather Statement | LBF | Garfield, Wheeler | 47 min |
| May 24, 5:18 PM MDT | Special Weather Statement | LBF | Frontier | 42 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 2021Every severe thunderstorm warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.